Tool for expanding the hole formed in the bone, in particular for installing an endosseous dental implant

Abstract

The expansion tool comprises an expander body (10) having, for penetration into the hole, an at least partly tapered elongate rectilinear penetration portion of circular cross-section provided at least partly with a helical thread (12) for engaging the wall of the hole; the expansion tool is intended to be engaged by a drive means able to rotate it with torsion about its axis (A), and is characterized in that said expander body (10) is constructed of synthetic resin and is traversed by a rigid axial core (13) positioned in its interior along its axis, and to which the body (10) is bonded. An important advantage is that as the expander body is of synthetic resin, its manufacturing cost is relatively low to the point that the expander body can be disposed of after use. This means that the use of the tool is very hygienic and at the same time the need for laborious tool cleaning operations is eliminated.

Dependencies are inferred from the claim text.